How Much Can Solar Save in Stonington?
Real numbers based on current Ameren Illinois rates and Illinois incentives.
$119
Current Bill/mo
$138
Est. Lease + Battery
7.4 yrs
Payback Period
$34,202
25-Year Savings
What You're Paying Now
Without solar, here's what Ameren Illinois electricity will cost you over time at 6% annual rate increases.
Monthly Bill
$119
Annual Cost
$1,428
25-Year Cost (No Solar)
$78,347
Your Solar Investment
7 kW System
$20,300
$11,194
After All IL Incentives
DG Rebate ($300/kW)-$2,100
Illinois Shines RECs (lump sum, ~18 mo)-$7,006
With vs Without Solar in Stonington
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $119/mo | $123/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | $-18/mo |
| 5-Year Cost | $7,711 | $7,380 |
| 25-Year Cost | $78,347 | $44,145 |
| Rate Control | None — utility sets rates | Fixed at $0.10/kWh (avg.) for 15 years |
| Home Value Impact | None | +$15,000–$25,000 (tax-exempt) |
Your Solar Savings Over Time
Estimated 25-Year Total Savings
$34,202
Without Solar
With Solar
Year 1
$1,428
$1,645
Year 2Payback Year
$2,942
-$3,699
Year 5
$8,050
$1,402
Year 10
$18,822
$10,393
Year 15
$33,238
$20,234
Year 20
$52,530
$31,306
Year 25
$78,347
$44,144
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1 | $1,428 | $1,645 | -$217 |
| Year 2Payback | $2,942 | -$3,699 | $6,641 |
| Year 3 | $4,546 | -$2,019 | $6,565 |
| Year 4 | $6,247 | -$319 | $6,566 |
| Year 5 | $8,050 | $1,402 | $6,647 |
| Year 6 | $9,961 | $3,147 | $6,814 |
| Year 7 | $11,986 | $4,916 | $7,071 |
| Year 8 | $14,134 | $6,712 | $7,422 |
| Year 9 | $16,410 | $8,537 | $7,873 |
| Year 10 | $18,822 | $10,393 | $8,429 |
| Year 11 | $21,380 | $12,283 | $9,097 |
| Year 12 | $24,090 | $14,209 | $9,881 |
| Year 13 | $26,964 | $16,174 | $10,789 |
| Year 14 | $30,010 | $18,182 | $11,828 |
| Year 15 | $33,238 | $20,234 | $13,004 |
| Year 16 | $36,660 | $22,335 | $14,325 |
| Year 17 | $40,288 | $24,489 | $15,799 |
| Year 18 | $44,133 | $26,699 | $17,434 |
| Year 19 | $48,209 | $28,970 | $19,239 |
| Year 20 | $52,530 | $31,306 | $21,224 |
| Year 21 | $57,110 | $33,711 | $23,398 |
| Year 22 | $61,964 | $36,192 | $25,772 |
| Year 23 | $67,110 | $38,754 | $28,356 |
| Year 24 | $72,565 | $41,403 | $31,162 |
| Year 25 | $78,347 | $44,144 | $34,202 |
Start Saving in Stonington
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